Enclosure not stated · 2 knobs
Boss SG-1 Slow GearVerified
Based on the Boss SG-1 Slow Gear· 6 other boards clone it
- Category
- Wah / Envelope
- Build
- Vero· 22×22· 31 cuts, 15 links
- Layout
- Verified · Dirtbox Layouts marks it as built and working
- Tags
- Boss, Envelope, Swell
From the post
Schematic is avaiable HERE.
Schematic
This is a board layout, a drawing of where each part goes, and the post may link the schematic it was drawn from. Open the layout at Dirtbox Layouts. No KiCad fragment has been drawn for this circuit yet.
Parts list 36 rows
Report a wrong parseGot parts in a drawer? See what you can build with them.
Check before you build · 2 values the reader of this layout was not sure of
- 470nF at column 11, rows L-N: printed clearly as 470nF but drawn as an electrolytic can
- D2-D4: legend prints '1N418/1N914', taken as 1N4148 (1N418 is not a part number)
| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 13 | ||||
| ×1 | 390Ω | 390 | read from the layout by eye | |
| ×1 | 470Ω | 470 | read from the layout by eye | |
| ×3 | 1K | 1k | read from the layout by eye | |
| ×1 | 3.3K | 3.3k | read from the layout by eye | |
| ×2 | 4.7K | 4.7k | read from the layout by eye | |
| ×3 | 10K | 10k | read from the layout by eye | |
| ×3 | 22K | 22k | read from the layout by eye | |
| ×1 | 47K | 47k | read from the layout by eye | |
| ×3 | 100K | 100k | read from the layout by eye | |
| ×1 | 220K | 220k | read from the layout by eye | |
| ×1 | 390K | 390k | read from the layout by eye | |
| ×2 | 470K | 470k | read from the layout by eye | |
| ×5 | 1M | 1M | read from the layout by eye | |
| Capacitors 10 | ||||
| ×1 | 1nF | 1n | read from the layout by eye | |
| ×2 | 22nF | 22n | read from the layout by eye | |
| ×1 | 33nF | 33n | read from the layout by eye | |
| ×2 | 47nF | 47n | read from the layout by eye | |
| ×1 | 470nF | 470n | electrolytic; read from the layout by eye | |
| ×6 | 1uF | 1u | electrolytic; read from the layout by eye | |
| ×2 | 10uF | 10u | electrolytic; read from the layout by eye | |
| ×1 | 33uF | 33u | electrolytic; read from the layout by eye | |
| ×1 | 47uF | 47u | electrolytic; read from the layout by eye | |
| ×1 | 100uF | 100u | electrolytic; read from the layout by eye | |
| Diodes 3 | ||||
| D1 | 5.6V Zener | 5V6 | read from the layout by eye | |
| ×3 | 1N4148 | 1N4148 | D2, D3, D4; legend prints 1N418/1N914; read from the layout by eye | |
| D5 | 1N5817 | 1N5817 | read from the layout by eye | |
| Transistors 6 | ||||
| Q1 | 2SK30A | 2SK30A | JFET; read from the layout by eye | |
| Q2 | 2N2222 | 2N2222 | 2N2222, 2N3904 etc.; read from the layout by eye | |
| Q3 | 2N2222 | 2N2222 | 2N2222, 2N3904 etc.; read from the layout by eye | |
| Q4 | 2N2222 | 2N2222 | 2N2222, 2N3904 etc.; read from the layout by eye | |
| Q5 | 2N2222 | 2N2222 | 2N2222, 2N3904 etc.; read from the layout by eye | |
| Q6 | 2N2222 | 2N2222 | 2N2222, 2N3904 etc.; read from the layout by eye | |
| ICs 1 | ||||
| IC1 | TL071 | TL071 | read from the layout by eye | |
| Potentiometers 2 | ||||
| Sens | A100K | A100k | Potentiometer | read from the layout by eye |
| Attack | B20K | B20k | Potentiometer | read from the layout by eye |
| Trimmers 1 | ||||
| ×1 | 10K | 10k | read from the layout by eye | |
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